The distolingual cusp of the tooth #30 fractures (Fig.17 *) 5 years 5 months post cementation of #31. In fact the tooth #30 is vital; the apical radiolucency (>) is a normal trabecular structure under CT study.
Xin Wei, DDS, PhD, MS 1st edition 04/12/2021, last revision 04/12/2021